<!-- Copied from https://hacks.mozilla.org/2012/04/click-highlights-with-css-transitions/ -->
<html>
    <head>
        <meta name="viewport" content="width=device-width, user-scalable=no"/>
        <title>TestUserAgent</title>
    </head>
    <h1>User agent string shown below</h1>
    <h2 id="us"></h2>

    <script>
        document.write("User-agent header sent: " + navigator.userAgent);
    </script>
    </body>
</html>
